LOS ANGELES--(BUSINESS WIRE)--Glancy
Prongay & Murray LLP (“GPM”) is investigating potential claims
on behalf of investors of TransDigm Group Incorporated (“TransDigm” or
the “Company”) (NYSE: TDG)
concerning the Company and its officers’ possible violations of federal
securities laws.

On January 20, 2017, Citron Researchpublished an article
claiming that TransDigm is the Valeant of the aerospace industry.
Specifically, Citron alleged that the Company’s business model relies on
acquiring airplane parts companies, firing employees, and egregiously
raising prices. Citron claimed that while the Company’s business model
made it a dominant airplane parts supplier, it also burdened the
Company’s balance sheet with a sky-high debt load. On this news, the
Company’s share price declined by nearly 10%.

Then, on March 21, 2017, California Representative Ro Khanna sent a
letter to the Defense Department Inspector General asking for an
investigation into the business practices of TransDigm, claiming that
the Company appears to be evading certain pricing and cost disclosure
regulations. On this news, the Company’s share price declined by more
than 5%, thereby injuring investors.

If you purchased TransDigm securities, have information or would like to
learn more about these claims, or have any questions concerning this
announcement or your rights or interests with respect to these matters,
please contact Lesley
Portnoy, Esquire, of GPM, 1925 Century Park East, Suite 2100, Los
Angeles, California 90067 at 310-201-9150, Toll-Free at 888-773-9224, by
email to shareholders@glancylaw.com,
or visit our website at http://www.glancylaw.com.
If you inquire by email please include your mailing address, telephone
number and number of shares purchased.

This press release may be considered Attorney Advertising in some
jurisdictions under the applicable law and ethical rules.